Television News David Letterman: I should have left 'Late Show' 10 years earlier 03/21/2019 David Letterman said on "The Ellen DeGeneres Show" Thursday that he should have left the "Late Show" 10 years earlier. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Ellen DeGeneres David Letterman Stephen Colbert Late Show
